Typographical machine



March 23, 1943. e, w, ALLAN ETAL TYPOGRAPHICAL MACHINE 2 Sheets-Sheet 1Filed Jan. 31, 1942 INVENTORS GEORGE W. ALLAN ATII'ORNEY March 23, 1943.G. w. ALLAN ETAL TYPOGRAPHICAL MACHINE 2 Sheets-Sheet 2 Filed Jan. 31,1942 INVENTORS GEORGE W.ALLAN 82 x251" H.5IMPSON ATTORNEY Patented Mar.23, 1943 2,314,324 TYPOGRAPHICAL MACHINE George W. Allan and lyn, N. Y.,assignors Brooklyn, N. Y., a corpo Albert H. Simpson, Brook- IntertypeCorporation, ration of New York Application January 31, 1942, Serial No.429,070

31 Claims.

This invention relates to improvements in typographical composingmachines of the general organization in Letters Patent 436,532 grantedSeptember 16, 1890, and is directed more particularly to improvementsapplicable to modern commercial machines of this class equipped with acolumn of superposed magazines which is shiftable fore and aft as a unitin the machine frame in order to bring one or another magazine, ordifferent pairs thereof, into operative relation with the matrixassembling and distributing devices of the machine.

' Broadly stated, the present improvements concern a brake mechanismwhich is operative preferably first to check the momentum of partsinvolved in the magazine shifting operation and then positively toarrest the shifting movement by action either directly or indirectly onthe col-' umn of magazines or the shifting devices or both (according tothe structural and operative relation between such parts) as a desiredor selected magazine approaches and then finally reaches a position forproper registration with the assembling and distributing devices withwhich it is intended to cooperate, the purpose being to avoid anytendency toward over-drive or over-run of the column of magazines due tothe momentum induced by the shifting operation and/or to unbalancedconditions arising from change of load or inclination of the surfaces onwhich the column of magazines is supported in the machine.

To explain briefly, the colurrm of magazines together with theirrespective underlying frames and the matrices contained in each magazinerepresents a very considerable load. This load is supported for fore andaft shifting movement in an inclined path and in practice it is usuallycounterbalanced so that within reasonable limits it can be shifted ineither direction upon application of about the same amount of power.Nevertheless, and especially when the shifting operation is performed bypower driven mechanism rather than by hand, it is difficult to timethedisconnecting or the cutting-01f of the source of power so accurately asto assure bringing the column to dead rest with the selected magazine inthe required exact registration with associated parts of the machine.For this purpose it has been proposed to project into the path ofshifting movement an interponent such as a spring pressed bolt or thelike arranged to snap or otherwise enter in direct and positiveengagement with the moving column at the critical stopping point. Sucharrangements are not only troublesome from the standpoint of setting andmaintaining them in accurate operating relation but give rise to abruptstopping and consequent wear, strain and binding of the parts involved.Moreover such arrangements require additional mechanism for effectingtheir release or disengagement prior toeach shifting operation and mustbe operated for such release against such unbalanced portion of theweight of the magazine column as may act upon them in holding or inlocating the column in a position of rest.

To avoid these and other disadvantages the present invention provides asimple and efiective brake mechanism the operation of which iscontrolled by a part involved in the shifting operation, for example, bythe magazine unit or a member associated therewith upon arrival of adesired or selected magazine substantially at its operating position,the arrangement being such as automatically to effect application of thebrake, preferably gradually, at a predetermined instant prior to arrivalof the selected magazine at its required operating position (forexample, just after or simultaneously with the cutting off of the motivepower in the case of a power drive) whereby to check the momentum of theshifting unit and finally to stop the shifting movement entirely as theselected magazine settles firmly but gently against a fixed locatingstop. Provision is also made for releasing the brake, preferablyautomatically and immediately after arrival of the selected magazine inoperating position, thus avoiding the necessity for manipulation ofassociated parts to eliminate resistance or drag of the brake at thestart of and/or. during a succeeding shifting operation. The brakeprovided by the invention may be operated either mechanically orelectrically, it being controlled preferably from a single actuatingelement disposed for actuation each time a magazine or any selected pairof magazines approaches operating position.

In the accompanying drawings, two embodiments of the invention are shownmerely in preferred form and by way of example, and obviously manychanges and variations may be. made .in the fOrm and arrangement of theparts and their mode of operation without departing from the spirit ofthe invention; It is to be understood, therefore, that the invention isnot lim ited to any specific form or embodiment except insofar as suchlimitations are expressed in the claims.

Referring to the drawings:

5 Fig. 1 is a side elevation of a portion of a typographical machine andshows an electrically operated brake according to the invention appliedto the power shift devices for the magazine unit.

Fig. 2 is a fragmentary section taken on line 2-2 in Fig. 1.

Fig. 3 is a perspective view from the front of the machine of the lowerright hand corner of the assembler front, the usual front cover platebeing omitted in order to show the arrangement of switches operated bythe magazine selecting lever, one for the power drive and the other forthe electrically operated brake mechanism of the invention.

Fig. 4 represents diagrammatically the contacts of the switches in Fig.3 and shows the switch for the power drive closed by the initialmovement of the magazine selecting lever from inactive position wherebyto start a shifting operation.

Fig. 5 is similar to Fig. 4 but shows both the power drive and the brakeswitches closed by the magazine selecting lever as the latter is pressedfully into active position during the shifting operation.

Fig. 6 is a circuit diagram showing the connections involved in theessential circuits for controlling the power drive and the electricallyoperated brake mechanism of the invention.

Fig. 7 is a side elevation of a portion of the machine shown in Fig. 1but shows an arrangement of connections for operating the brake devicemechanically instead of electrically.

Fig. 8 represents diagrammatically the different normal or restpositions occupied by the master control switch for the power drive whendifferent pairs of magazines are active and indicates the direction andextent of manual and automatic movement of the switch components fromeach said position to the other in selecting different magazines.

As previously intimated, the improvements according to the invention areespecially useful in connection with power driven magazine shiftingmechanism and such improvements are herein shown and described in a formapplicable to the power shift devices disclosed in our Letters PatentNo. 2,199,772 to which reference may be had for full details of theentire construction and operation. For present purposes it is deemedsufficient to discuss briefly only such'details of such construction asare concerned directly with the application and operation of the brakemechanism of the present invention. Thus, for illustrative purposes,there is shown in Fig. 1 a shiftable magazine unit comprising foursuperposed magazines A supported respectively on underlying frames Bwhich are secured together at opposite sides by suitable tie plates, onesuch plate C being shown. The magazine unit is supported for fore andaft shifting movement in the frame of the machine in substantially thesame manner as shown in our prior Patent No. 2,199,772 which in turnfollows the general arrangement disclosed in Letters Patent No.2,103,980 granted December 28, 1937, to H. R. Freund.

Briefly, the unit is supported at opposite sides toward its upper end byrollers I0 carried by a cross shaft H secured near its opposite ends inflanges I2 on the underside of the lowermost magazine frame B, therollers H! resting on inclined tracks 13 formed on the top edge andtoward the rear of the opposed rigid side frame members D. Shaft H isloosely connected by curved links it (one at each side of the machine)to a lower cross shaft 15 provided at opposite ends with pinions liikeyed to the shaft and adapted to travel on toothed racks I! when theshaft is turned, the links i 4 thus serving to transmit fore and aftmovement to the magazine unit along the inclined tracks 13. At a forwardpoint toward its lower end the magazine unit is supported by rollers l8mountd on studs in the opposed tie plates C and adapted to travel on camplates I 9 secured to the inner face of the opposed side frame membersD, the plates 19 being so shaped as to impart to the lower end of theunit during its fore and aft movement the raising and lowering actionnecessary to clear the upper ends of the escapement actuating reeds 20,all in a manner fully described in Patent No. 2,103,980 hereinabovereferred to. It will be observed that the cam plates [9 provide threelow positions for the rollers I3, the rear position shown in Fig. lwhich places the upper pair of magazines in operating position, themiddle position for the middle pair of magazines, and the forwardposition for the lower pair.

For turning the shaft I 5 by power, and as disclosed in our prior PatentNo. 2,199,772, there is provided a reversible gear reduction motor 2|the drive shaft of which is connected by a belt 22 to a pulley 23 keyedto the rear end of a spindle 24 the axis of which is offset from themotor shaft. and extends fore and aft along one side of the magazineunit parallel to the racks ll. Spindle 24 is threaded over a portion 25thereof (indicated by dot-dash lines) at least equal to the length ofthe racks I! which are long enough to cover the full range of fore andaft shifting, and the threaded spindle engages a worm gear 25 secured toshaft [5 at a point on the shaft directly below the axis of the spindle;Accordingly, when the motor is in operation it drives the spindle 24 andcauses shaft 15 to travel either forwardly or rearwardly along racks l1,according to the direction of rotation of the motor, and results in acorresponding forward or rearward shifting of the magazine unit.

The operation of motor 2| is controlled by a master switch comprisingrelative movablev elements 2'! and 28, these elements correspondingrespectively to'the contact box and associated cam plate disclosed inour prior Patent No. 2,199,772 to which reference may be had for morecomplete details than it is deemed necessary to dwell upon here.Briefly, the control switch elements 2? and 28 are normally disposedside by side in adjacent planes when the column of magazines is at rest,and are supported for relative movement in their respective planes inguideways formed on a bracket 29 secured to the machine framen Toinitiate a magazine shifting operation element 21 is first adjusted orshifted relative to element 28 by manual manipulation of the magazineselecting lever 39 from a position denoting the magazine or pair thereofin use to a position denoting the newly desired magazine or pairthereof. Fig. 1 clearly shows the lever 39 rockably mounted on a fixedpivot 31 and having an arm 32 loosely connected to a link 33 pivoted tothe side of element 21 whereby to enable manual adjustment of thelatter. Such change in the setting of element 2'! relative to element 28effects closing of a set of motor circuit controlling contacts (notshown, but contained within element 28 and cooperative with actuatingcams carried by element 21) so that the actual shifting operation canproceed. During the shifting movement of the magazines, element 28 ismoved automatically from the position it occupied prior to the manualadjustment of element 27 to a position again opposite to the latterthrough the rack bar 34 suitably secured to element 28 and actuated intimed relation to the shifting movement by a pinion 34 on shaft l whichengages teeth along the top edge of the bar 34 (all as in our priorpatent referred to). Upon arrival of element 28 opposite to the newlyset position of element 21 the contact and cam devices of said elementscooperate to open the motor circuit and to terminate the shiftingoperation automatically, that is, to terminate the shift after themagazines have moved an extent predetermined by the extent of manualadjustment, in advance, of the magazine selecting lever.

As best seen in Fig. 3, the magazine selecting lever 30 may be adjustedprior to a shifting operation from any one to any other of a series ofnotches 35, 35 and 31 in acover plate 38 at the front of a bracket 39secured to a fixed part of the machine frame, said notches designatingthe operating positions respectively of the upper, middle and lowerpairs of magazines relative to the dual assembler throats 40 and 4| andcorresponding so-called channel entrance passages (not shown) whichcooperate as usual with the upper ends of the active magazines forguiding matrices thereinto from the distributing devices of the machine.It Will be understood that the number of notch positions for lever 35 inthe cover plate 33 may correspond either to the number of individualmagazines in the column or to the number of pairs thereof depending uponwhether the machine is equipped with single or dual assembling anddistributing facilities.

In Fig. 8, the elements 21 and 28 of the master control switch arerepresented diagrammatically side by side in the three different normalpositions of rest they occupy when the upper, middle and lower pairs ofmagazines are active, each such coinciding position of the switchelements being denoted by a corresponding notch position for theselecting lever 30. The full line arrows indicate the direction andextent of manual adjustment by lever 39 of the switch element 21relative to element 23 (from any one to any other notch position) toeffect a corresponding predetermined extent of shifting movement of themagazine unit, and the dotted line arrows indicate the subsequent andresulting corresponding extent of movement automatically in the samedirection of switch element 28 in order to restore the two switchelements to a normal side-by-side position upon completion of suchpredetermined amount of shifting movement. 7

For locating a selected pair of magazines in accurate register with theassembler throats and distributing devices of a machine of the generalconstruction shown in Fig. 1, each magazine supporting frame is providedat opposite sides with edgewise projecting lugs 42 adapted to seatagainst the adjacent angular walls of a notch 43 in the upper edge ofregister plates 44, one such plate being provided on the inner side ofeach of the opposed side frame members D. Thus, when a shiftingoperation is initiated the column of magazines will be moved until thelugs 42 on the upper frame of the selected pair of magazines arriveinthe bottom or vertexv of the opposed notches 43, the switch elements 21and 28 then standing opposite to one another and thus opening the motorcircuit through the controlling contacts of such switch elements.However, due to such factors as momentum and inequalities in theeffectiveness or adjustment of the counterbalancingsystem underdifferent load conditions (substitutionof different magazines containingagency of a fonts of matrices which differ in weight) it is difficult totime the break in the motor circuit precisely with the full seating oflugs 42 so that there is a tendency sometimes for inertia of the movingcolumn to bring about an overrun slightly beyond a dead rest positionwith the locating lugs 42 seated firmly and accurately in thecooperative notches in plates 44. According to the present invention abrake device is provided to prevent such overrun by checking at thecritical moment the momentum of the parts involved in the shiftingoperation and thus assure firm and accurate seating of the locating lugs42 in the notches 43, there being provided in a series circuit,independent of the motor circuit, brake controlling switches generallydesignated 45 and 46 and a solenoid relay 4! which serve to effectapplication of the brake simultaneously or substantially so with theopening of the motor circuit and release of the brake after arrival ofthe selected pair of magazines in operative position.

According to the construction herein illustrated, merely by way ofexample, the brake device comprises a flexibl friction band 48 disposedabout a flange 49 which may conveniently be formed integral with thespindle drivingpulley 23, the band 48 being split at one point and theends being bent outwardly to form in effect radially projecting lugsthrough which a bolt 55 passes freely, the bolt 59 being threaded intothe upper arm 5i of a bracket 52 rigidly secured to the motor supportingbracket 53 and passing freely through an aperture in the lower arm 54 ofthe bracket 52, all as clearly shown in Fig. 1. A cam arm 55 pivoted at56 on bolt 58 freely engages against the underside of one lug of thebrakeband 48 which lug is free to move on bolt 50, an adjusting nut 51on bolt 59 overlying the other lug of the band so as to fix its positionon bolt 55. A light spring 58 encircling bolt 59 between the opposedlugs of the brake band serves to keep it normally in expanded condition.The cam arm 55 is loosely pivoted to the plunger 59 of the solenoidrelay 4'! and another light spring 58 serves to rock the cam arm 55counterclockwise to permit expansion-of the brakeband by spring 58 whenrelay 4? is deenergized.

It will be evident that a downward pull exerted on plunger 59 when relay4'! is energized will rock the cam arm 55 clockwise about its pivot 56(slightly compressing springs 58 and 58 and result in contraction of thebrakeband 4B and gripping thereof on the flange 49, the lower or freelug of the split band being advanced toward the upper or fixed lug bythe slightly eccentric cam face 50 of arm 55. It will'also be observedthat while the brakeband is contracted more or less quickly and theactual amount of contraction is relatively small, the gentle rise of thecam face fill brings about its engagement frictionally with the flangeof the driving pulley gradually enough first to check momentum and thusproduce a somewhat cushioned stopping action. This arrangement has theobvious advantage of avoiding stopping of the shifting movement with asudden shock such as would result from a rigid interponent projectedinto the pathof shifting movement or into direct and positive engagementwith the magazine unit or the, shifting organs.

For governing the flow of energy to the relay 4? in order to apply thebrake there is provided the aforementioned switches 45 and 46 which areconnected in series with the relay coil and the power line independentof the motor circuit, see

Fig. 6. Switch 45' comprises a pair of flat spring contact fingersmounted within but insulated from asuitable housing which latterissupportedas-by an angle bracket 6| securedto the machine frame member Das best seen in Fig. 2. An operating plunger 62 rests by gravity at itslower 'end (provided with an insulated tip) against one of the contactfingers of switch 45 and projects upwardly out of the switch housingthrough a suitable guideway formed in the register plate 44 on the righthand frame member D, the plunger 62 being slidable in its guideway inthe plate 44 and being of such length that its upper end projects intoexposed position in the notch t3" whenever the contacts of switch 45 areopen, the springy nature of the upper contact finger of the switch beingsufficient to so hold the plunger. This condition is clearly representedin Fig. 6 and it will be apparent that plunger 62 is susceptible ofdepression to close the switch contacts upon entry into the notch 43 ofa magazine locating lug 42. It will also be apparent that the plunger 82is held depressed and holds switch 45 closed whenever a lug 42 rests innotch 43.

Closing of switch 45, however, will not result in energizing the relay4'! to operate the brake except when switch G5 is also closed. Thisoccurs under conditions which will become clear from a brief review ofthe general arrangement, as fully set forth in our Patent No. 2,199,772,of certain parts associated with the magazine selecting lever 36. Thus,as best seen in Figs. 3 and 6, the motor circuit includes a safetyswitch, generally designated 63 and similar in all respects to theswitch 46, switch 63 being provided with a plunger 64 for actuating itscontact fingers. Plunger 5-; has an insulated tip and is freely slidable in a suitable bushing at one side of the switch housing whichlatter is secured to an upright bracket 55 rigidly mounted on a portionof the machine frame. The magazine selecting lever 3t is flexiblesidewise owing to the insertion over a portion of its length of the flatspringy blade t8 (see Fig. 1) and this flexibility is utilized toactuate the switch plunger 64 through the agency of a plate El. Platei5! is adapted to swing on a vertical axis on upper and lower'trunnions68 (only the upper one is shown) and the body of the plate is disposedbetween lever 35 and plunger 64 in such manner that one side normallylies just clear of the exposed end of the plunger while a flange 59along the front edge of the other side of the plate lies in contact withthe stem of lever 30.

Thus, when lever 30 is adjusted from one notch position to another inthe cover plate 38 and displaces the master control switch element 21relative to the element 28 to effect closing of the motor circuit, ashereinbefore explained, such circuit will not in fact be completed untilmanual pressure sidewise (to the left in Fig. 3) on lever 36 causesplunger 64, actuated by plate 61, to close the contacts of switch 63.The shifting movement of the magazine unit or column will then start andwill continue so long as side pressure is exerted on lever '36 to holdthe safety switch 63 closed, but in any event the power for shiftingwill be cut off automatically as soon as the master switch elements 2'!and 28 coincide, that is, when the magazine pair corresponding to thenotch position to which lever 30 was adjusted arrives substantially inoperating posi tion.

Returning now to the brake controlling switches 45 and 46 through whichcurrent flows under the proper conditions to'energize the relay 41 andapply the brake, switch 45 is operated by the magazine selecting leverand plate B'I'in a similar manner to that just described with regard toswitch 63'. Thus, switch 46 is also mounted on bracket'65 immediatelyabove the motor safety switch 63 but is disposed with the exposed end ofits contact actuating plunger 10 somewhat further away from the side ofthe swinging plate 6'1. By this arrangement it will be apparent thatwhen sidewise pressure is exerted on lever 30 the contacts of the motorcircuit switch 63 will be closed in advance of closing of the contactsof the brake circuit switch 45. Conversely, when sidewise pressure onlever 36 is relieved or discontinued the brake switch 46 will open priorto opening of the motor'switch 63.

The action of plate 6'! (moved by lever 30) on switches tt and 63 isdiagrammatically illustrated in Figs. 4 and 5 in which, for the purposeof clarity, the switch elements are represented as if disposed onebehind the other relative to the swingable plate 6'! instead of oneabove the other as shown in Fig. 3. In Fig. 4 the initial sidewisepressure on lever 36 has swung plate 61 from its normal position farenough only to allow plunger 64 to close the contacts of the motorswitch 63. In Fig, 5 plate 5? has been swung fur ther by lever 36 (asfar as permitted by the depth of the notches in the cover plate 38) andhas depressed plunger 10 sufficiently to also close the contacts of thebrake switch 46.

From the foregoing it will be seen that whenever the lever 30 isadjusted from one notch position to another and pressed sidewise intothe n'ewly selected notch the motor circuit will be closed through thesafety switch 63 and the contacts of the master switch element 23(contacts which close whenever element 21 is displaced by adjustment oflever 39 as hereinbefore explained), and the shifting movement of themagazine unit will commence immediately upon closing of the safetyswitch 63 which occurs, as already stated, slightly before plate 61.swings far enough to close the brake switch 46, that is, before lever 39has been pressed sidewise far enough to fully actuate the brake switchplunger 70. By the time the brake switch 45 is closed by the fullsidewise swing of plate -31 by lever 30 (a fractional part of a secondafter switch 63 is closed) the forward end of the magazine unit (whichstarts to move the instant switch 53 closes) will have elevatedsuificiently (due to the sharp rise on cam plates I9,over which rollersl8 travel) to allow-plunger to rise under the spring action of thecontact arm in switch 65 upon which the plunger rests by gravity, thusopening switch 45 at about the same instant that switch 46 becomesclosed. Since the brake circuit will then be incomplete the brake willbe relaxed and offer no resistance either at the start of or during theensuing shifting movement. But application of the brake to check themomentum of the moving column of magazines and finally halt the shiftingmovement will take place as soonas the particularlug 42 which is tolocate the newly selected magazine depresses plunger 62 of the brakeswitch 45 and closes the contacts of this switch, it being observed thatthe brake circuit is then momentarily completed through switches 45 and46' and the coil of relay ll. It will be understood that the contactfingers of switch 45 are so adjusted as to be closed completely byplunger-62 at about the same time that a lug 42 assumes" fullseatingposition'in notch 43, and

that the contacts of the master switch (21, 28) are set so as to openthe motor circuit simultaneously or substantially so with such closingof switch 45.

As previously pointed out and as in our Patent No, 2,199,772, opening ofthe motor circuit takes place automatically when the switch elements 21and 28 coincide or when the selected magazine arrives in operatingposition, and as herein set forth the brake is applied at about the sametime the motor circuit is opened in order at such time positively tocheck the momentum of the magazine unit. Since the shifting operation isthen completed, side pressure manually on lever is discontinued and thespringy blade 66 acts to swing lever outwardly from the notch into whichit was pressed. Switches 46 and 63 are then free to spring open, thespringy nature of their contact fingers pressing the plungers 64 and Itand the plate 61 back to normal position. Thus, although the brakeswitch is held closed by lug 42 resting on plunger 62 when the magazineunit stands at rest, the brake switch 46 remains open. Relay 41,therefore, is energized only momentarily near the completion of eachshifting operation, that is, during the short period from the time a lug42 closes switch 45 (as the selected magazine approaches its restposition) to the time immediately following when switch 45 is opened dueto relieving the manual pressure on the magazine selecting lever 30.

It will now be clear that the arrangement of switches 27, 28 and 53 inthe motor circuit and switches 45 and 45 in the brake circuit is suchthat both circuits will never be completed simultaneously'except perhapsfor a fraction of a second as a selected magazine closely approaches itsfinal position of rest. When the motor circuit is completed throughswitches 21, 28 and 63 (a condition which exists only during the actualshifting operation) the brake switch 45 will be open. When brake switch45 closes, as it does upon arrival of a selected magazine in operatingposition, and brake switch 46 is also closed due to the manual pressureon lever 30, the motor switch 27, 28 will be open or about to open dueto completion of the shifting operation. And when brake switch 45 isheld closed, as it is when the magazine unit is at rest, the brakeswitch 45 and the motor switches 63 and 21, 28 will all be open. Theforegoing conditions will all be evident upon tracing the circuitsrepresented in Fig. 6.

It may be pointed out that if the magazine selecting lever 31! shouldhappen to be pressed sidewise (either inadvertently or intentionally)into the notch before which it stands when the magazine unit is at restor when the machine is idle, the motor safety switch 63 will close solong as such side pressure is applied, but the master switch 27, 28 willremain open and no shifting movement will take place, it beingremembered that the motor circuit through the latter switch can closeonly when the element 2'! is actually displaced relative to element 23through adjusting the lever 36 from one notch position to another. Thebrake switch 45 will also close when lever out being adjusted to adifferent notch position and the brake circuit through this switch,switch 46 and relay 41 will then be completed and the brake will beapplied so long as side pressure is exerted on lever 30 as by holding itmanually.

However, such application of the brake when the magazines or the machinestand idle will do no harm whatever and need not occur at all except 30is pressed sidewise with-.

through inadvertence or as a result of willful manipulation.

As previously stated, the brake device of the present invention may beoperated either electrically or mechanically. The arrangement formechanical operation is .clearly shown in Fig. 7 wherein the brakeproper comprises the aforementioned flexible brakeband 48 disposed aboutthe flange 49 of the power driven pulley 23. In the present instance thebrakeband is contracted by a cam arm H similar to the previouslydescribed cam arm but adapted to be rocked about its pivot 12 on rod 50by a brake operating rod 13 loosely connected at 14 to arm 1 I. A headmember threadedon the forward end of rod 13 is confined laterally in avertically elongated guide slot 16 formed in an angle bracket 11 securedto the rigid frame member D and a hook described,

formed at the end of member 15 is adapted to engage over a small roller78 carried on a pin in the free end of a rocker plate 19 which latter ispivoted at '80 to frame member D. A spring 8| hooked to the head 15 andto rocker plate 19 serves constantly to urge these elements intoengaging relation, that is, to maintain engagement of the hook over theroller so long as no greater force acts to separate them. A spring 82hooked to the plate 19 and to apin in frame member D urges the plate ina clockwise direction against a stop pin 83.

Rocker plate 19 is provided at its bottom edge with a lug 84 (bentinwardly as viewed in Fig. 7)

which carries an adjustable follower pin 85 on which the lower end ofplunger 62, hereinbefore rests freely by gravity. The lower end ofplunger 62 is slightly rounded in order to permit rolling contact on pin85 when plate 19 is rocked in a manner shortly to appear. When plate 19rests against stop pin 83, the upper end of plunger 62, as heretofore,is adapted to project upwardly where it is exposed in notch 43 inregister plate 44 and this condition will prevail during the operationof shifting the magazine unit at which time none of the magazinelocating 1ugs42'rest in the notch 43. Such condition is represented inFig.7 in which a lug 42, indicated by dot-dash lines, has arrived justat a position of contact'with the upper end of plunger 62 and the headmember 15 of the brake operating rod 13 is hooked over roller 18. Inthis position of the parts the brakeband 48 is held expanded by spring58, a brake release spring 86 hooked to the pivot 14 and to a pin 81 inthe rigid bracket 52 acting to dispose the low portion of cam arm Hbeneath the free lower lug of the brakeband and to exert a rearward pullon the brake operating rod 13-.

Application of the brake takes place at about the same time the motivepower for shifting the magazine unit is cut off and is effected throughdepression of plunger 62 by a magazine locating lug 42 as the latterapproaches seating position in notch 43.- Thus, as a lug 42 settles innotch 43 depression of plunger 62 acting on pin 85 rocks plate 19counterclockwise about its pivot against the tension of springs 82, and59. Since spring 81, assisted by spring 82, maintains the head member 15hooked over roller 18 during such rocking of plate 19, a forward pull isexerted on the brake operating rod i3 which in turn rocks the cam arm 7|about its pivot 12. This results in contracting the brakeband 43 and therelative disposition and adjustment of the parts is such that themaximum contraction occurs just prior to full seating of lug 42 in notch63, thus fully checking the momentum of the moving parts '(after cuttingoff the actual ource ofpower) an instant in advance oi arrival ofthe lugto full Seating position in notch 43.

' Means is provided for releasing thejbrakes substantially at the momenta lug 42 finally seats in notch 43. Such means comprises an adjustablestop 88 which conveniently may be secured in a lug 89 constituting partof the anglebraclaet TI and which has the purpose of stripping thehooked hea'd member 15 off roller 78 at the proper moment. Thus it willbe evident that as plate 19 is rocked by plunger 62 the brake operatingrod 13 hooked over roller 78 gswings downward about its rear pivot 14,slot 16 in bracket T! being long enough to permit such angular movementof the rod 13. However, during the last fractional portion of thedepression of plunger 62 by lug 42, the headportion 15 'encounters stop88 which then holds rod 13 rigid relative to roller'18 while plate 19completes its counterclockwise swing under the influence of plunger 62.The result is that the hooked head member 15 is stripped from'engagem'entw'ith roller 18 whereupon spring .85 is free to rock cam armH to the vertical or brake releasing position shown in Fig. 1. A pin '90in headmember -75 limits the action of spring86 by stopping against thefront face of bracket 11. Spring 58 serves, of course, to expandtheflbrfkeband 48 as soon as ,cam arm H i rocked to brake releasingposition and springs 8l 'andBZ acting on rocker-plate .19 keep roller 13rmly pressed against the sloping forward end of 'thefhook'on member 15.

The brake remains released when the magazines are at rest and prior toandv during the greater part of .each shifting operation. The hooked endof member 15 becomes engaged over roller 18 to reset the brake forapplication toward the end of a shifting operation as soon as lug .42rises out .ofnotch43 at the start of the shift. Thus it will be apparentthat when plunger is relievedof the pressure of a lug 42 rocker plate719 is freeto swing clockwise to the limit fixed by stop pin 83, pin 85then acting to elevate the plunger to exposed position in notch 43 androller H18 riding into the hooked end of member la. The threadedconnection between member and rod "(3 enables adjustments to be made forcorrect timing of the stop positions of parts I9 and 1-5 respectivelyagainst their stop pins 83 and 951, that is, such timing as will ensurefull and intimate engagement'of roller 18 in the cooperating'hooked endof member 15 when the aforesaid parts rest against their stops.

We claim as our invention:

1. In a typographical machine, thecombination of aplurality of magazinesshiftable fore and aft as a unit, mechanism operable to impart shiftingmovement to aid unit to bring a selected magazine into operatingposition, and brake means adapted 'for factuation by saiduni't andoperative upon arrival of'the selected magazine in such positionautomatically tocooperate with a part of said mechanism to arrest theshifting movement imparted thereby to said unit.

.2. A combination according to claim 1 wherein the mechanism forimparting shifting movement includes a rotary shaft coupled to themagazine unit,'and wherein the brake means specified includesan'elementadapted to frictionally engage said rotary shaft to arrest theshifting movement and includes =alsoc'onnections actuated by themagazine unit to effect such vfrictional engagement when and asrequired.

3. In a typographical machine,.the combination of a plurality ofmagazines 'shiftable, fore and aft as a unit, reversible powerdrivenmechanism operable to shift said unit in either direction to bring aselected magazine into operating position, brake means operative uponsaid mechanism to prevent overrun or rebound of said unit upon arrivalof the selected magazine in operating position, and connecting meansbetween the magazine unit and said power driven mechaanisin forautomatically controlling the operation of said brake means.

4. In a typographical machine, the combination of a plurality ofmagazines shiftable fore and aft as a unit, mechanism operableto shiftsaid unit to bring a selected magazine intooperating position, and brakemeans operative immediately in advance of arrival of the selectedmagazine insuch position automatically to engage directly with saidmechanism to check,the momentum thereof and of said unit as theselectedmagazine approaches its operating position.

5. In a typographical machine, the combination of a plurality ofmagazines shiftable fore and aft as a unit, mechanismoperable to shiftsaid unit to bring a selected magazine into operating position, andbrake means operative automatically upon approach of the selectedmagazine to such position to cooperate with a part of the shiftingmechanism whereby to check the momentum of the shifting unit andcompletely to arrest its movement when the selected magazine reachessaid operating position.

6. A combination according to claim 5, wherein the shifting mechanism isconstituted by power driven devices including a rotary shaft, andwherein the brake means specified includes .an element adapted forcooperation with .saidshaft to resist itsrotation and connections fromsaid element adapted for actuation by a part associated with "themagazine unit to effect such cooperation when and as required.

7. A combination according to claim 5, wherein the shifting mechanism isconstituted by power driven devices including a rotary shaft, andwherein the brake means specified includes an element adapted forcooperation with said shaft to resist its rotation substantially uponarrival of the selected magazine in operating position and brakeactuating devices operated by a part associated with the magazine unitfor determining the operating position of the selected magazine.

8. A combination according to claim 5, wherein the shifting mechanism isconstituted by power driven devices including a rotary shaft, andwherein the brake means specified includes a flexible band adapted to'frictionally engage said shaftand connections actuated by the magazineunit for gradually contracting said band to efiect such engagement whenand as required.

9. A combination according to claim 5, wherein the shiftingmechanismincludes a rotary shaft directly associated with the magazine unit anddriving connections adapted to induce rotatlon of said shaft whendesired, and wherein the brake means specified includes devices actuatedby the magazine unit and operativeto efiect application of the brake atthe proper time to said driving connections.

10. In a typographical machine, the combination of a pliuality ofmagazines shiftable fore tion of a plurality of magazines shiftable foreand aft as a unit, mechanism operable to shift said unit to bring aselected one of the magazines into operating position, brake meanscooperative with said shifting mechanism and operative automaticallyupon arrival of the selected magazine in such position to arrest theshifting movement, and means controlled by the magazine unit forgoverning the operation of said brake means and operative to effect boththe application and release of the brake.

12. In a typographical machine, the combination of a plurality ofmagazines shiftable fore and aft as a unit, mechanism for shifting saidunit to bring a selected one of the magazines into operating position,brake means cooperative with said shifting mechanism, and brakeactuating devices responsive to the approach of the selected magazine tosuch position to effect such cooperation and thereby apply the brake andresponsive to the full seating of such magazine in such position toeffect release of said brake.

13. In a typographical machine, the combination of a plurality ofmagazines shiftable fore and aft as a unit, mechanism for shifting said.unit to bring a selected one of the magazines into operating position,brake means cooperative with said shifting mechanism, and brakeactuating I devices responsive to the approach of the selected magazineto such position to effect a gradual application of the brake to checkthe momentum of the moving parts and responsive to the full seating ofsuch magazine to fully apply the brake and then effect its release.

14. In a typographical machine, the combination of a plurality ofmagazines shiftable fore and aft as a unit, mechanism for shifting saidunit to bring a selected magazine into operating position, a brakeadapted for cooperation with said shifting mechanism at predeterminedintervals corresponding to the operating position of each magazine, andbrake actuating devices responsive to the approach of any magazine toits operating position to effect such cooperation of the brake to firstretard and then to arrest the shifting movement.

15. A combination according to claim 14, wherein the brake actuatingdevices are operated automatically by a device on the magazine unitwhich determines the operating position of the selected magazine.

16. In a typographical machine, the combination of a plurality ofmagazines shifta-ble as a unit in opposite directions, mechanismoperable to shift said unit to bring a selected magazine into operatingposition, control means for initiating and terminating the operation ofsaid mechanism as required, and brake means adapted for cooperation withsaid mechanism in timed relation with the operation thereof under theinfluence of said control means.

1'7. A combination according to claim 16, wherein the control meansspecified is operated manually to initiate the operation of the shiftingmechanism and is adapted automatically to terminate such operation asrequired, and wherein the brake means specified includes devicesoperable to apply the brake substantially simultaneously with thetermination of the operation of the shifting mechanism by said controlmeans and to subsequently release the brake.

, 18. In a typographical machine, the combination of a plurality ofmagazines shiftable as a unit in opposite directions, reversiblemechanism for effecting the shifting movement required to bring anyselected magazine into operating position, control means for initiatingand terminating the operation of said shifting mechanism, and brakemeans including devices operative to effect application of the brakesubstantially simultaneously with termination of the operation of saidshifting mechanism by said control means and devices operative to effectrelease of the brake upon arrival of the selected magazine in operatingposition.

I 19. A combination according to wherein the devices included in thebrake means are operative to effect the application and the release ofthe brake automatically, said devices being actuated by a partassociated with the selected magazine.

20. In a typographical machine, the combination of a plurality ofmagazines 'shiftable fore and aft as a unit, mechanism for shifting saidunit to bring a selected one of the magazines into operating position,brake means adapted to arrest the shifting movement at as many points asthere are magazines in the unit thereof, and brake actuating devices foreifecting application of the brake automatically at each of said points,said devices being operated through a common element cooperative with amember associated with each of the magazines.

21. In a typographical machine, the combination of a plurality ofmagazines shiftable fore and aft as a unit, mechanism for shifting saidunit to bring a selected one of the magazines into operating position,brake means adapted to arrest the shifting movementat as many points asthere are magazines in the unit thereof, and brake actuating devices foreffecting application of the brake automatically at each of said points,said devices being operated by a member associated with each magazinefor determining its operating position and said memberand said elementacting to effect release of the brake upon arrival of any selectedmagazine in its operating position.

22. In a typographical machine, the comb-ination of a plurality ofmagazines shiftable as a unit in opposite directions,'reversibleelectrically operated mechanism for shifting said unit to bring aselected magazine into operating position, switch devices forcontrolling the operation of said mechanism and adapted to initiate andterminate such operation for a given extent of shift in eitherdirection, and brake means including a brake proper for arresting theshifting movement and switch devices adapted automatically to effect insequence the application and release of the brake substantiallysimultaneously with the termination of the shifting operation.

23. In a typographical machine, the combination of a plurality ofmagazines shiftable as a unit in opposite directions, reversible powerdriven mechanism for shifting said unit to bring a selected magazineinto operating position, adjustable control means for initiating andterminating the operation of said mechanism and adapted according to theadjustment thereof claim 18,,

automatically togovern the extent of shifting movement required toselect a given magazine, a brake adapted for cooperation momentarilywith said mechanism upon completion of such extent of movement, anddevices operative automatically to effect such cooperation to apply thebrake and thereafter to release it in timed relation with termination ofthe shifting movement by said adjustable control means.

24. In a typographical machine, the combination of a plurality ofmagazines shiftable as a unit in opposite directions, reversible powerdriven mechanism for shifting said unit to bring any selected magazineinto operating position, manually adjustable control means adapted uponadjustment to initiate the operation of said mechanism and to terminatesuch operation automatically upon arrival of the selected magazine inits operating position, and brake means operative automatically toarrest the shifting movement of said unit upon termination of theoperation of said power driven mechanism. I

25. A combination according to claim 24, wherein the brake meansincludes devices arranged for actuation by the magazine unitsubstantially upon completion of the extent of shift permitted by theadjustable control means.

26. In a typographical machine, the combina tion of a plurality ofmagazines shiftable as a unit in opposite directions, reversible powerdriven mechanism for shifting said unit to bring any selected magazineinto operating position, control means adapted to initiate and terminatethe operation of said mechanism for the required extent of shift ineither direction, a brake for arresting the shifting movement upontermination of the operation of said mechanism, and devices operativeautomatically to eiTect application of the brake to arrest such movementand to maintain said brake in released condition prior to initiating asucceeding shifting operation.

27. In a typographical machine, the combination of a plurality ofmagazines shiftable as a unit in opposite directions, reversible powerdriven mechanism for shifting said unit diiTerent extents as required toselect one or another magazine for use, adjustable magazine selectingmeans operative upon adjustment to initiate the operation of saidmechanism and to terminate such operation as required, brake meansincluding devices adapted automatically to effect application of thebrake to arrest the shifting movement upon termination of the operationof said power driven mechanism and to effect subsequent release of thebrake, and means operated by the magazine selecting means forconditioning said brake means for application and'release, as required.

28. In a typographical machine, the combination of a plurality ofmagazines shiftable as a unit in opposite directions, reversible powerdriven mechanism for shifting said unit different extents to bring aselected magazine into operating position, magazine selecting meansoperable to condition said mechanism for operation as required, brakemeans including a brake proper normally held released and devicesoperative under control of the selected magazine to apply the brake toarrest the shifting movement, and means controlled by the magazineselecting means for conditioning said brake for such application and forconditioning it for release upon arrival of the selected magazine inoperating position.

29. In a typographical machine, the combination of a plurality ofmagazines shiftable as a unit in opposite directions, reversible powerdriven mechanism for shifting said unit different extents to bring aselected magazine into operating position, magazine selecting meansoperable to condition said mechanism for operation as required, brakemeans including devices operative under control of the selected magazineto apply the brake to arrest the shifting movement and also devices foreffecting release of the brake prior to each conditioning of the powerdriven mechanism for operation by the magazine selecting means.

30. In a typographical machine, the combination of a plurality ofmagazines shiftable as a unit in opposite directions, reversiblemechanism for shifting said unit to bring a selected magazine intooperating position, brake means for arresting the shifting movement uponarrival of the selected magazine in such position, and brake operatingdevices constructed for movement in one direction only in effectingapplication and release of the brake.

31. A combination according to claim 30, wherein the brake operatingdevices are ar ranged for movement by a member carried by the magazineunit, partial movement by said member effecting application of the brakeas the selected magazine approaches its operating position and continuedfurther movement efiecting release of the brake when said magazinearrives in said position.

GEORGE W. ALLAN. ALBERT H. SIMPSON.

DISCLAIMER 2,314,324.Ge0rge W. Allan and Albert H. Simpson, Brooklyn, N.Y. TYPOGRAPHICAL MACHINE. Patent dated March 23, 1943. Displaimer filedJanuary 21, 1944, by the assignee, Intertype Corporation. Hereby entersthis disclaimer to claims 1, 3, 10, 11, 16, 17, 20, 24, and 25 of saidLetters Patent.

[Qflicial Gazette February 22, 1944.]

